Dave, I think that I am okay with that suggested change. I am a little bit worried about using the word "measure" as it can be taken to imply things that we really do not want to address (e.g., a means to measure and a quantifiable scale for measurement). I thought about suggesting changing "A measure" to "An indication" but that seems just a bit too vague to me. I don't have a better suggestion right now. Allen Luniewski IBM Cross Brand Services IBM Silicon Valley Laboratory 555 Bailey Ave. San Jose, CA 95141 408-463-2255 408-930-1844 (mobile) "Dave Berry" <daveb@nesc.ac.uk > To Sent by: <ogsa-d-wg@ogf.org> ogsa-d-wg-bounces cc @ogf.org "Treadwell, Jem" <jem.treadwell@hp.com> Subject 10/08/2007 02:11 [OGSA-D-WG] ***SPAM*** Definition PM of data consistency Jem queried our definition of data consistency, which is currently: |-------------------------------------------------------------------------| |A policy that specifies or describes how up-to-date an instance of data | |is in one service of a distributed system, with respect to one or more | |instances of that data elsewhere in the system. | |-------------------------------------------------------------------------| Jem said (in e-mail): my thought was that data consistency would be a state of the data - it's consistent w.r.t. some other set of data or it isn't; the policy would be the rules that determine whether it is, and what the requirements are. I've had a look through our document and I agree. We refer to data consistency policies but also to data consistency requirements, mechanisms and strategies. So, how about this as a revised definntion: "A measure of how up-to-date an instance of data is in one service of a distributed system, with respect to one or more instances of that data elsewhere in the system." Best wishes, Dave Berry Deputy Director, Research & E-infrastructure Development National e-Science Centre 15 South College Street, Edinburgh, EH8 9AA +44 131 651 4039 www.nesc.ac.uk -- ogsa-d-wg mailing list ogsa-d-wg@ogf.org http://www.ogf.org/mailman/listinfo/ogsa-d-wg
